"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 极致RTO-数据库系统类
Case Name   : 开启极致RTO，备机进行build过程中，执行gs_om stop&start操作，重新build，关闭极致RTO，主备数据一致
Create At   : 2020/10/15
Owner       : @peilinqian
Description :
    1、开启极致RTO
    2、备机进行重建
    3、数据库gs_om -t stop
    4、查询主备状态
    5、等待10S重启数据库
    6、查询主备状态
    7、备机进行重建
    8、执行完成后，关闭极致RTO
    9、查询主备数据是否一致
Expect      :
    1、开启极致RTO成功
    2、备机开始进行重建
    3、数据库stop成功，重建失败
    4、查询主备状态stop
    5、等待10S重启数据库成功
    6、查询主备状态，重建失败的备机状态不正常
    7、备机进行重建成功
    8、执行完成后，关闭极致RTO成功
    9、查询主备数据一致
History     :
    modified：2021-3-9 by 5328113;主备同步方法调用修改，增加超时等待时间；
    modified：2021-2-5 by 5328113;guc参数还原时指定还原值
    modified ：2020-11-18 by @peilinqian ；完善TPCC断言；
    modified ：2020-12-15 by @peilinqian ；tpcc执行完成后，增加同步校验；去掉stop及stop状态断言校验，
        因为可能出现recovery导致失败，最终只保证build及最后结果符合预期即可
    modified:2021-1-28 by 5328113;删除start成功断言，删除不必要tpcc
"""

import time
import unittest

from testcase.utils.ComThread import ComThread
from testcase.utils.Common import Common
from testcase.utils.CommonSH import *
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class ExtremeRto(unittest.TestCase):
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.log.info('----Opengauss_Reliability_RTO_Dbsys_Case019:初始化----')

        self.pri_root = Node(node='PrimaryRoot')
        self.pri_dbuser = Node(node='PrimaryDbUser')
        self.sta1_root = Node(node='Standby1Root')
        self.sta1_dbuser = Node(node='Standby1DbUser')
        self.sta2_dbuser = Node(node='Standby2DbUser')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.sta_1_sh = CommonSH('Standby1DbUser')
        self.sta_2_sh = CommonSH('Standby2DbUser')
        self.com = Common()
        self.constant = Constant()
        self.tpcc_path = macro.TPCC_PATH
        self.node_num = self.com.get_node_num(self.pri_root)
        self.log.info(self.node_num)
        self.max_time = 1200
        self.min_time = 300

    def test_main(self):
        try:
            self.log.info('----1、开启极致RTO----')
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'replication_type=1')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_parse_workers=4')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_redo_workers=4')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'hot_standby=off')
            self.assertTrue(msg)
            # 重启数据库配置文件生效
            self.pri_sh.stopDbCluster()
            time.sleep(2)
            self.pri_sh.startDbCluster()

            self.log.info('----查看主机query，同步是否正常----')
            self.pri_sh.check_location_consistency('primary',
                                                   self.node_num,
                                                   self.min_time)

            self.log.info('----查询主备状态----')
            status = self.pri_sh.getDbClusterStatus('status')
            self.assertTrue(status)

            self.log.info('----备机数据库进行gs_ctl stop；----')
            stop_msg = self.sta_1_sh.stopDbInstance()
            self.assertIn(self.constant.GS_CTL_STOP_SUCCESS_MSG, stop_msg)

            self.log.info('----主机执行TPCC----')
            tpcc_cmd = f'. runBenchmark.sh {macro.TPCC_PROPS_FILENAME}'
            tpcc_result = self.com.startTPCC(self.pri_root,
                                             self.tpcc_path,
                                             tpcc_cmd)
            self.log.info(tpcc_result)
            error_flags = ('error', 'ERROR', 'FATAL')
            if self.constant.TPCC_SUCCESS_MSG in tpcc_result:
                self.assertFalse(
                    any(err in tpcc_result for err in error_flags))
            else:
                self.assertTrue(False)

            self.log.info('----等待主机及备2同步----')
            self.pri_sh.check_location_consistency('primary',
                                                   self.node_num - 1,
                                                   self.min_time)

            self.log.info('----2、备机进行重建----')
            success_msg = self.constant.REBUILD_SUCCESS_MSG
            build_thread = ComThread(self.sta_1_sh.executeGsctl,
                                     args=('build', success_msg,))
            build_thread.setDaemon(True)
            build_thread.start()
            time.sleep(2)

            self.log.info('----3、数据库gs_om -t stop----')
            self.pri_sh.stopDbCluster()

            self.log.info('----4、查询主备状态----')
            self.pri_sh.getDbClusterStatus('status')

            # 等待build重建完成
            build_thread.join()
            build_result = build_thread.get_result()
            self.assertFalse(build_result)

            self.log.info('----5、等待10S重启数据库----')
            time.sleep(10)
            self.pri_sh.startDbCluster()

            self.log.info('----6、查询主备状态----')
            self.pri_sh.getDbClusterStatus('status')

            self.log.info('----7、备机进行重建----')
            rebuild_result = self.sta_1_sh.build_fail_scp_crtfile()
            if rebuild_result:
                self.log.info('重建失败后，再次进行备机重建成功，已恢复')
            else:
                self.log.info('重建失败后，再次进行备机重建失败，请检查失败原因')
            self.assertTrue(rebuild_result)

            self.log.info('----查看主机query，同步是否正常----')
            self.pri_sh.check_location_consistency('primary',
                                                   self.node_num,
                                                   self.min_time)

            self.log.info('----查询主备状态----')
            status = self.pri_sh.getDbClusterStatus('status')
            self.assertTrue(status)

        finally:
            self.log.info('----8、执行完成后，关闭极致RTO----')
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_parse_workers = 1')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_redo_workers = 1')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'hot_standby=on')
            self.assertTrue(msg)
            # 重启数据库配置文件生效
            self.pri_sh.stopDbCluster()
            time.sleep(2)
            self.pri_sh.startDbCluster()

            self.log.info('校验备机是否完成数据同步')
            flag_1 = self.sta_1_sh.check_location_consistency('standby',
                                                              self.node_num,
                                                              self.min_time)
            self.assertTrue(flag_1)
            flag_2 = self.sta_2_sh.check_location_consistency('standby',
                                                              self.node_num,
                                                              self.min_time)
            self.assertTrue(flag_2)

            self.log.info('----9、查询主备数据是否一致----')
            nodes_tuple = (self.pri_dbuser,
                           self.sta1_dbuser,
                           self.sta2_dbuser)
            flag = self.com.check_data_sample_by_all(r'\d', *nodes_tuple)
            self.assertTrue(flag)

            table_dict = self.com.format_sql_result(
                self.pri_sh.executDbSql(r'\d'))
            table_name = table_dict.get('Name')
            for name in table_name:
                select_sql = f'select count(*) from {name};'
                flag = self.com.check_data_sample_by_all(select_sql,
                                                         *nodes_tuple)
                self.assertTrue(flag)

    def tearDown(self):
        self.log.info('----校验刷脏页是否完成----')
        self.pri_sh.check_whether_remain_dirty_page()

        self.log.info('----Opengauss_Reliability_RTO_Dbsys_Case019:执行完毕----')
